Sight



June' 19, 1945. ,'M mG 2,378,391

7 SIGHT Filed Oct. 29, 1941 Patented June 19, 1945 sron'r Harry M. .BradingQEvansville, 1nd,, assignor to Indian Archery & Toy Corporation, Evansville,

' 11111., a corporation of Indiana Application October 29, 1941, Serial No. 417,0l8

1 Claim. (01. 33 -46) This invention pertains to archery tackle, and more particularly'to a bow sight or range finder to enable the flight of the arrow to be more accurately predetermined and directed.

i There is one distance only at which the arrow may be expected to hit the mark 'when the pile or tip of the arrow is brought into the line of vision between the archers eye and the gold. This is point blank range. If the distance is greater or less than this, thepoint of aim must be below or above the target. This condition arises from the factthat the archers line of vision does not coincide with the arrow at the moment of draw, but is convergent thereto. Wherefore, when shooting, for example, at twenty yards range, the elevation will be less than at point blank range. Therefore, the line of vision over the pile with the nock of the arrow under the chin will intersect the ground somewhere between the archer and the target. Ordinarily in archery practice this point of aim having been located by triaL'a marker is placed, on which if the arrow is properly trained, it will hit the gold,

instead Archery arrows are also strongly subject to deflection by wind and compensation must be made for drift or windage.

The present inventionaffords a simple, convenient and inexpensive range finder or sight device, which is adjustable both for distance and for windage, and for cast of the bow, which enables the archer to aim directly at the gold and avoids the necessity fora point of aim-marker on the ed. for distance and wind velocity; having few and simple parts, and unlikely to get out of repair. A furtherobject of the invention is to provide a bow sight or archery range finder having the advantageous structural features and. inherent.

meritorious characteristics. herein mentioned.

With the above primary and other incidental objects in view as will more fully appear in the specification, the invention intended to be protected by Letters Patent consists of the featuresof construction, the parts and combinations I thereof, and the mode ofoperation, or their I equivalents, as hereinafter described or illustrated in the accompanying drawing.

In the drawing, wherein is illustrated the preferred but obviously not necessarily the only form of embodiment of the invention,

Fig. 1 is a perspective view of a portion of an archery bow, the extremities of which are broken 7 away, to which a bow sight embodying the present invention is aflixed.

Fig.2 is an enlarged perspective view partly broken away'of the range finder removed from the bow.

Fig. '3 is a diagrammatic view illustrating the relative directions of the line of sight and the flight of the arrow, when utilizing the pile or arrow tip as the Sight, and illustrating the desirability of an adjustable sight device.

Like parts are indicated by similar characters of referencethroughout the several views.

In the accompanying drawing, I indicates the medial portion of a conventional archery bow,

from which the extremities have been broken away. The back of the'bow is attached, just above the bow handle, the range finder forming subject matter hereof. This bow sight or range finder is of quite simple and inexpensive construction, and comprises a lamination or strip 2 of felt, cork, or other easily penetrable material secured to the .bow, into which a conventional large head pin 3 maybe thrust different distances trans-' versely of the bow I and attached strip 2 at different points within the length of the latter. To protect and confine the strip 2 and afiord a finished appearance, the easily penetrable felt or cork strip is preferably, but not necessarily, overlaid with a strip 4 of Celluloid, fiber, plastic, or wood, which, if desired, may match the color of the bow or be otherwise ornamental in character.

The laminations 2 and 4 may be glued or cemerited to each other andthe stratum 2 may be The head 5 of the pin comprises the sight which is to be brought into the line of vision from the archers eye to the gold. If after trial the arrow flight is found tooshort, or contrarily its trajectory too high, the position of the pin in the penethe trajectory of the arrow and increase the dis-- I tance of its flight.

tra'ble stratum 2 is raised or lowered as may be necessary. Raising the position of the pin 3 will lower the flight of the arrow and shorten its range, when the head 5 of the pin is brought in line with the target. To the contrary, lowering the position of the pin 3 will correspondingly raise By thrusting the pin 3 to greater or less extent within the penetrable stratum 2, the point of aim is shifted to the right or left of the target to compensate for drift or Wind deflection. By so doing, the arrow is directed laterally divergent with the line of sight into the wind sufficiently to compensate for windage. In the event of a strong wind from the right, the position of the pin may be reversed and it may be thrust into the penetrable stratum 2 from the left so that it will project oppositely to its position in Fig. 1. Thus, by utilizingthe head 5 of the pin as the sight and adjusting the pin vertically and horizontally as found necessary, the point of aim may remain the gold and variations of distance, cast or wind velocity may be compensated by such adjustment.

Fig. 3 diagrammatically illustrates the present mode of making the gold the point of aim at all ranges, with the customary method of using a marker on the green as the point of aim which is variable for distance. In Fig. 3 the line of sight ab to the marker 6 is that customarily employed, and for different range the point of sight is changed. To the contrary, by use of the present range finder, the gold is always the point of sight, and the line of sight cd direct to the gold is constant for all ranges. The difference of range is compensated by adjustment of the pin.

It is to be understood that the adoption of a strip of felt and a commercial pin is in the interest of simplicity and economy, but that the invention is not limited thereto and more elaborate substitutes may be utilized.

From the above description it will be apparent that there is thus provided a device of the character described possessing the particular features of advantage before enumerated as desirable, but which obviously is susceptible of modification in its form, proportions, detail construction and arrangement of parts without departing from the principle involved or sacrificing any of its advantages.

While in order to comply with the statute, the invention has been described in language more or less specific as to structural features, it is to be understood that the invention is not limited to the specific features shown, but that the means and construction herein disclosed comprise the preferred form of several modes of putting the invention into effect, and the invention is there fore claimed in any of its forms or modifications within the legitimate and valid scope of the appended claim.

Having thus described my invention, I claim:

An archery bow sight, including a strip of felt and a strip of Celluloid or the like, superposed one upon the other and attached to an archery bow, and a thrust pin having an enlarged head thrust transversely into the felt strip in the plane thereof, the pin being adjustable longitudinally and transversely relative to the strip to compensate for distance and windage.

HARRY M. BRADING. 

